help me w/my clutch!!

[DrtyRat]

alright, here's the story....i just finished having my sr installed about 7 days ago and everything was fine until the last few days. my clutch(act stage2)started to feel like it was slipping but i had no choice but to drive it cuz i only have the one car. today i'm driving home and the clutch feels like its gone i couldn't go above 30mph the thing is this is a brand new clutch and only has 300 miles on it at most. a guy i was talking to had a similiar prob w/his excedy clutch and says it fixed the prob...the guy who did the swap and the clutch says he will look at it today but i'm curious to know if it is probable that the clutch is bad?